Nouveau - Feb 2019 - Render Targets and Pitch Linear Textures in Maxwell/Pascal Question

So I have been going on over the documentation trying to figure out the
exact layout of Pitch Linear Textures and find some missing values.

First Question: What's the correct layout of pitch linear textures in
memory? Is padding of the pitch added at start or at the end? Do they have
some kind of header? Currently I see them as a normal texture matrix with
just pitch at the end of each row but If I send the game this values, they
go into an ternal loop.

Second Question: Pitch Value in Render Targets. In the registers in
https://github.com/envytools/envytools/blob/master/rnndb/graph/gf100_3d.xml#L282
the pitch does not appear anywhere, where is it stored for Render Targets.

Thanks in advance and I hope you guys can provide me some info.
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Miptree layout for linear textures:

https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/nouveau/nv50/nv50_miptree.c#n238

Setting for RTs:

https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c#n224

Follow the !nouveau_bo_memtype path (and not BUFFER).

Hope this helps,

  -ilia

On Fri, Feb 1, 2019 at 5:25 PM Fernando Sahmkow <fsahmkow27 at gmail.com>
wrote:
>
> So I have been going on over the documentation trying to figure out the
exact layout of Pitch Linear Textures and find some missing values.
>
> First Question: What's the correct layout of pitch linear textures in
memory? Is padding of the pitch added at start or at the end? Do they have some
kind of header? Currently I see them as a normal texture matrix with just pitch
at the end of each row but If I send the game this values, they go into an
ternal loop.
>
> Second Question: Pitch Value in Render Targets. In the registers in
https://github.com/envytools/envytools/blob/master/rnndb/graph/gf100_3d.xml#L282
the pitch does not appear anywhere, where is it stored for Render Targets.
>
> Thanks in advance and I hope you guys can provide me some info.
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> Nouveau mailing list
> Nouveau at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau